Yingzhi Jin, Shuai Wang, Yajun Zhang, Bo Song
Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
Sensors and Actuators B: Chemical Volume 225, 31 March 2016, Pages 167-173
Chemical detection of Zn2+ ion plays an important role in both environmental and biological systems. In this paper, a new chemosensor based on benzothiazole was designed and synthesized. The fluorescent intensity of the chemosensor enhanced significantly with existence of Zn2+ ion. The control experiments show that the analogous ions (Pb2+, Co2+, Ni2+, Mn2+, Cu2+, Mg2+, Cd2+, Na+ and K+) do not have fluorescence enhancement effect; and some of them even quench the fluorescence dramatically. The intensity increase upon addition of Zn2+ is due to the coordination between Zn2+ and benzothiazole. This chemosensor shows a high sensitivity for Zn2+ with a detection limit as low as 7.5 × 10−7 mol L−1 and high selectivity through a ‘turn-on’ fluorescence response over the other tested metal ions.
链接：//www.sciencedirect.com/science/article/pii/S0925400515306213
